package com.lazy.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.lazy.utils.RespBean;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        response.setContentType("application/json;charset=UTF-8");
        Object token = request.getSession().getAttribute("token");
        if (token !=null){
            return true;
        }
        response.getWriter().print(new ObjectMapper().writeValueAsString(RespBean.error("未登录")));
        return false;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}
